1 files changed, 133 insertions, 0 deletions
diff --git a/llvm/test/DebugInfo/X86/dwarf-callsite-related-attrs.ll b/llvm/test/DebugInfo/X86/dwarf-callsite-related-attrs.ll
new file mode 100644
index 00000000000..5fb78e42372
--- /dev/null
+++ b/llvm/test/DebugInfo/X86/dwarf-callsite-related-attrs.ll
@@ -0,0 +1,133 @@
+; $ clang++ -S -emit-llvm -o - -gdwarf-5 -o - -O1 tail2.cc
+; volatile int sink;
+; void __attribute__((noinline)) bat() { sink++; }
+; void __attribute__((noinline)) bar() { sink++; }
+; void __attribute__((noinline)) foo() {
+;   bar(); bat();
+;   bar(); bat();
+; }
+; int __attribute__((disable_tail_calls)) main() { foo(); }
+
+; REQUIRES: object-emission
+; RUN: %llc_dwarf < %s -o - | FileCheck %s -check-prefix=ASM
+; RUN: %llc_dwarf < %s -filetype=obj -o %t.o
+; RUN: llvm-dwarfdump %t.o -o - | FileCheck %s -check-prefix=OBJ -implicit-check-not=DW_TAG_call_site
+; RUN: llvm-dwarfdump -verify %t.o 2>&1 | FileCheck %s -check-prefix=VERIFY
+; RUN: llvm-dwarfdump -statistics %t.o | FileCheck %s -check-prefix=STATS
+; RUN: llvm-as < %s | llvm-dis | llvm-as | llvm-dis -o /dev/null
+
+; VERIFY: No errors.
+; STATS: "call site entries":5
+
+@sink = global i32 0, align 4, !dbg !0
+
+; ASM: DW_TAG_subprogram
+; ASM:   DW_AT_call_all_calls
+; OBJ: [[bat_sp:.*]]: DW_TAG_subprogram
+; OBJ:   DW_AT_call_all_calls (true)
+; OBJ:   DW_AT_name ("bat")
+define void @_Z3batv() !dbg !13 {
+entry:
+  %0 = load volatile i32, i32* @sink, align 4, !dbg !16, !tbaa !17
+  %inc = add nsw i32 %0, 1, !dbg !16
+  store volatile i32 %inc, i32* @sink, align 4, !dbg !16, !tbaa !17
+  ret void, !dbg !21
+}
+
+; ASM: DW_TAG_subprogram
+; ASM:   DW_AT_call_all_calls
+; OBJ: [[bar_sp:.*]]: DW_TAG_subprogram
+; OBJ:   DW_AT_call_all_calls (true)
+; OBJ:   DW_AT_name ("bar")
+define void @_Z3barv() !dbg !22 {
+entry:
+  %0 = load volatile i32, i32* @sink, align 4, !dbg !23, !tbaa !17
+  %inc = add nsw i32 %0, 1, !dbg !23
+  store volatile i32 %inc, i32* @sink, align 4, !dbg !23, !tbaa !17
+  ret void, !dbg !24
+}
+
+; ASM: DW_TAG_subprogram
+; ASM:   DW_AT_call_all_calls
+; OBJ: [[foo_sp:.*]]: DW_TAG_subprogram
+; OBJ:   DW_AT_call_all_calls (true)
+; OBJ:   DW_AT_name ("foo")
+; OBJ:   DW_TAG_call_site
+; OBJ:     DW_AT_call_origin ([[bar_sp]])
+; OBJ:     DW_AT_call_return_pc ({{[0x]+}}26)
+; OBJ:   DW_TAG_call_site
+; OBJ:     DW_AT_call_origin ([[bat_sp]])
+; OBJ:     DW_AT_call_return_pc ({{[0x]+}}2b)
+; OBJ:   DW_TAG_call_site
+; OBJ:     DW_AT_call_origin ([[bar_sp]])
+; OBJ:     DW_AT_call_return_pc ({{[0x]+}}30)
+; OBJ:   DW_TAG_call_site
+; OBJ:     DW_AT_call_origin ([[bat_sp]])
+; OBJ:     DW_AT_call_tail_call
+define void @_Z3foov() !dbg !25 {
+entry:
+  tail call void @_Z3barv(), !dbg !26
+  tail call void @_Z3batv(), !dbg !27
+  tail call void @_Z3barv(), !dbg !26
+  tail call void @_Z3batv(), !dbg !27
+  ret void, !dbg !28
+}
+
+; ASM: DW_TAG_subprogram
+; ASM: DW_AT_call_all_calls
+; OBJ: DW_TAG_subprogram
+; OBJ: DW_AT_call_all_calls (true)
+; OBJ: DW_AT_name ("main")
+; OBJ:   DW_TAG_call_site
+; OBJ:     DW_AT_call_origin ([[foo_sp]])
+; OBJ:     DW_AT_call_return_pc ({{[0x]+}}46)
+define i32 @main() !dbg !29 {
+entry:
+  call void @_Z3foov(), !dbg !32
+
+  %indirect_target = load void ()*, void ()** undef
+  call void %indirect_target()
+
+  call void asm sideeffect "", "~{dirflag},~{fpsr},~{flags}"()
+
+  ret i32 0, !dbg !33
+}
+
+!llvm.dbg.cu = !{!2}
+!llvm.module.flags = !{!8, !9, !10, !11}
+!llvm.ident = !{!12}
+
+!0 = !DIGlobalVariableExpression(var: !1, expr: !DIExpression())
+!1 = distinct !DIGlobalVariable(name: "sink", scope: !2, file: !3, line: 1, type: !6, isLocal: false, isDefinition: true)
+!2 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, file: !3, producer: "clang version 7.0.0 ", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !4, globals: !5)
+!3 = !DIFile(filename: "/Users/vsk/src/llvm.org-tailcall/tail2.cc", directory: "/Users/vsk/src/builds/llvm-project-tailcall-RA", checksumkind: CSK_MD5, checksum: "3b61952c21b7f657ddb7c0ad44cf5529")
+!4 = !{}
+!5 = !{!0}
+!6 = !DIDerivedType(tag: DW_TAG_volatile_type, baseType: !7)
+!7 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)
+!8 = !{i32 2, !"Dwarf Version", i32 5}
+!9 = !{i32 2, !"Debug Info Version", i32 3}
+!10 = !{i32 1, !"wchar_size", i32 4}
+!11 = !{i32 7, !"PIC Level", i32 2}
+!12 = !{!"clang version 7.0.0 "}
+!13 = distinct !DISubprogram(name: "bat", linkageName: "_Z3batv", scope: !3, file: !3, line: 2, type: !14, isLocal: false, isDefinition: true, scopeLine: 2, flags: DIFlagPrototyped | DIFlagAllCallsDescribed, isOptimized: true, unit: !2, retainedNodes: !4)
+!14 = !DISubroutineType(types: !15)
+!15 = !{null}
+!16 = !DILocation(line: 2, column: 44, scope: !13)
+!17 = !{!18, !18, i64 0}
+!18 = !{!"int", !19, i64 0}
+!19 = !{!"omnipotent char", !20, i64 0}
+!20 = !{!"Simple C++ TBAA"}
+!21 = !DILocation(line: 2, column: 48, scope: !13)
+!22 = distinct !DISubprogram(name: "bar", linkageName: "_Z3barv", scope: !3, file: !3, line: 3, type: !14, isLocal: false, isDefinition: true, scopeLine: 3, flags: DIFlagPrototyped | DIFlagAllCallsDescribed, isOptimized: true, unit: !2, retainedNodes: !4)
+!23 = !DILocation(line: 3, column: 44, scope: !22)
+!24 = !DILocation(line: 3, column: 48, scope: !22)
+!25 = distinct !DISubprogram(name: "foo", linkageName: "_Z3foov", scope: !3, file: !3, line: 4, type: !14, isLocal: false, isDefinition: true, scopeLine: 4, flags: DIFlagPrototyped | DIFlagAllCallsDescribed, isOptimized: true, unit: !2, retainedNodes: !4)
+!26 = !DILocation(line: 5, column: 3, scope: !25)
+!27 = !DILocation(line: 6, column: 3, scope: !25)
+!28 = !DILocation(line: 7, column: 1, scope: !25)
+!29 = distinct !DISubprogram(name: "main", scope: !3, file: !3, line: 8, type: !30, isLocal: false, isDefinition: true, scopeLine: 8, flags: DIFlagPrototyped | DIFlagAllCallsDescribed, isOptimized: true, unit: !2, retainedNodes: !4)
+!30 = !DISubroutineType(types: !31)
+!31 = !{!7}
+!32 = !DILocation(line: 8, column: 50, scope: !29)
+!33 = !DILocation(line: 8, column: 57, scope: !29)